Download Bacharach MGS SERIES Specifications
Transcript
Multi-Channel Input Single- and Dual-Alarm Controllers Installation and Operation Manual Instruction 6709-9000 Revision 1 – October 25, 2012 Product Leadership • Training • Service • Reliability MGS Series Controller Manual WARRANTY POLICY BACHARACH, INC. WARRANTS THIS INSTRUMENT, EXCLUDING SENSORS, TO BE FREE FROM DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF ONE YEAR FROM THE DATE OF PURCHASE BY THE ORIGINAL OWNER. THE SENSORS HAVE A WARRANTY PERIOD OF ONE YEAR FROM THE DATE OF PURCHASE. IF THE PRODUCT SHOULD BECOME DEFECTIVE WITHIN THIS WARRANTY PERIOD, WE WILL REPAIR OR REPLACE IT AT OUR DISCRETION. THE WARRANTY STATUS MAY BE AFFECTED IF THE INSTRUMENT HAS NOT BEEN USED AND MAINTAINED PER THE INSTRUCTIONS IN THIS MANUAL OR HAS BEEN ABUSED, DAMAGED, OR MODIFIED IN ANY WAY. THIS INSTRUMENT IS ONLY TO BE USED FOR PURPOSES STATED HEREIN. THE MANUFACTURER IS NOT LIABLE FOR AUXILIARY INTERFACED EQUIPMENT OR CONSEQUENTIAL DAMAGE. DUE TO ONGOING RESEARCH, DEVELOPMENT, AND PRODUCT TESTING, THE MANUFACTURER RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE. THE INFORMATION CONTAINED HEREIN IS BASED ON DATA CONSIDERED ACCURATE. HOWEVER, NO WARRANTY IS EXPRESSED OR IMPLIED REGARDING THE ACCURACY OF THIS DATA. ALL GOODS MUST BE SHIPPED TO THE MANUFACTURER BY PREPAID FREIGHT. ALL RETURNED GOODS MUST BE PRE-AUTHORIZED BY OBTAINING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER. CONTACT THE MANUFACTURER FOR A NUMBER AND PROCEDURES REQUIRED FOR PRODUCT TRANSPORT. SERVICE POLICY BACHARACH, INC. MAINTAINS AN INSTRUMENT SERVICE FACILITY AT THE FACTORY. SOME BACHARACH DISTRIBUTORS / AGENTS MAY ALSO HAVE REPAIR FACILITIES, HOWEVER, BACHARACH ASSUMES NO LIABILITY FOR SERVICE PERFORMED BY ANYONE OTHER THAN BACHARACH PERSONNEL. REPAIRS ARE WARRANTED FOR 90 DAYS AFTER DATE OF SHIPMENT (SENSORS, PUMPS, FILTERS AND BATTERIES HAVE INDIVIDUAL WARRANTIES). SHOULD YOUR INSTRUMENT REQUIRE NON-WARRANTY REPAIR, YOU MAY CONTACT THE DISTRIBUTOR FROM WHOM IT WAS PURCHASED OR YOU MAY CONTACT BACHARACH DIRECTLY. IF BACHARACH IS TO DO THE REPAIR WORK, SEND THE INSTRUMENT, PREPAID, TO BACHARACH, INC. AT THE FOLLOWING ADDRESS. BACHARACH, INC. 621 HUNT VALLEY CIRCLE NEW KENSINGTON, PA 15068 ATTENTION: SERVICE DEPARTMENT ALWAYS INCLUDE YOUR RMA #, ADDRESS, TELEPHONE NUMBER, CONTACT NAME, SHIPPING/BILLING INFORMATION AND A DESCRIPTION OF THE DEFECT AS YOU PERCEIVE IT. YOU WILL BE CONTACTED WITH A COST ESTIMATE FOR EXPECTED REPAIRS PRIOR TO THE PERFORMANCE OF ANY SERVICE WORK. FOR LIABILITY REASONS, BACHARACH HAS A POLICY OF PERFORMING ALL NEEDED REPAIRS TO RESTORE THE INSTRUMENT TO FULL OPERATING CONDITION. 2 6709-9000 Rev 1 MGS Series Controller Manual PRIOR TO SHIPPING EQUIPMENT TO BACHARACH, CONTACT OUR OFFICE FOR AN RMA # (RETURNED MERCHANDISE AUTHORIZATION). ALL RETURNED GOODS MUST BE ACCOMPANIED WITH AN RMA NUMBER. PACK THE EQUIPMENT WELL (IN ITS ORIGINAL PACKING IF POSSIBLE), AS BACHARACH CANNOT BE HELD RESPONSIBLE FOR ANY DAMAGE INCURRED DURING SHIPPING TO OUR FACILITY. NOTICES COPYRIGHTS: THIS MANUAL IS SUBJECT TO COPYRIGHT PROTECTION; ALL RIGHTS ARE RESERVED UNDER INTERNATIONAL AND DOMESTIC COPYRIGHT LAWS. THIS MANUAL MAY NOT BE COPIED OR TRANSLATED, IN WHOLE OR IN PART, IN ANY MANNER OR FORMAT, WITHOUT THE WRITTEN PERMISSION OF BACHARACH, INC. ALL SOFTWARE WHICH BACHARACH UTILIZES AND/OR DISTRIBUTES, HOLDS A PROPRIETARY INTEREST AND IS ALSO SUBJECT TO COPYRIGHT PROTECTION AND ALL RIGHTS ARE RESERVED. NO PARTY MAY USE OR COPY SUCH SOFTWARE IN ANY MANNER OR FORMAT, EXCEPT TO THE EXTENT THAT BACHARACH GRANTS THEM A LICENSE TO DO SO. IF THIS SOFTWARE IS BEING LOADED ONTO MORE THAN ONE COMPUTER, EXTRA SOFTWARE LICENSES MUST BE PURCHASED. TECHNICIAN USE ONLY THIS UNIT MUST BE INSTALLED BY A SUITABLY QUALIFIED TECHNICIAN WHO WILL INSTALL THIS UNIT IN ACCORDANCE WITH THESE INSTRUCTIONS AND THE STANDARDS IN THEIR PARTICULAR INDUSTRY/COUNTRY. OPERATORS OF THE UNIT SHOULD BE AWARE OF THE REGULATIONS AND STANDARDS IN THEIR INDUSTRY/COUNTRY FOR THE OPERATION OF THIS UNIT. THESE NOTES ARE ONLY INTENDED AS A GUIDE AND THE MANUFACTURER BEARS NO RESPONSIBILITY FOR THE INSTALLATION OR OPERATION OF THIS UNIT. FAILURE TO INSTALL AND OPERATE THE UNIT IN ACCORDANCE WITH THESE INSTRUCTIONS AND WITH INDUSTRY GUIDELINES MAY CAUSE SERIOUS INJURY INCLUDING DEATH AND THE MANUFACTURER WILL NOT BE HELD RESPONSIBLE IN THIS REGARD. HAZARDOUS AREA WARNING THIS INSTRUMENT HAS NOT BEEN DESIGNED TO BE INTRINSICALLY SAFE FOR USE IN AREAS CLASSIFIED AS HAZARDOUS LOCATIONS. FOR YOUR SAFETY, DO NOT USE IT IN HAZARDOUS (CLASSIFIED) LOCATIONS. 6709-9000 Rev 1 3 MGS Series Controller Manual Table of Contents SECTION 1. 1.1. 1.2. 1.3. 1.4. 1.5. INTRODUCTION ........................................................................ 5 OVERVIEW .................................................................................................. 5 2-CHANNEL AND 6-CHANNEL MODELS ............................................................. 5 ALARMING .................................................................................................. 5 COMPONENTS .............................................................................................. 8 SPECIFICATIONS .......................................................................................... 11 SECTION 2. MOUNTING INSTRUCTIONS .................................................... 12 2.1. INSTALLATION WARNINGS ............................................................................ 12 2.2. LOCATION RECOMMENDATIONS .................................................................... 12 2.3. MOUNTING DIMENSIONS ............................................................................. 13 SECTION 3. WIRING ................................................................................... 16 3.1. 1- AND 2-CHANNEL UNITS (SINGLE- AND DUAL-ALARM) ................................... 16 3.2. 4- AND 6-CHANNEL UNITS (SINGLE- AND DUAL-ALARM) ................................... 17 3.3. EXTERNAL HORN (FOR AUDIBLE ALARMS) ....................................................... 20 SECTION 4. CONFIGURATION AND OPERATION ........................................ 21 4.1. OVERVIEW ................................................................................................ 21 4.2. INTRODUCTION TO CHANGING ALARM LEVEL(S) ............................................... 21 4.3. CHANGING ALARM LEVEL FOR 2-CHANNEL, 1-ALARM UNITS .............................. 23 4.4. CHANGING ALARM LEVEL FOR 2-CHANNEL, 2-ALARM UNITS .............................. 24 4.5. CHANGING ALARM LEVEL FOR 6-CHANNEL, 1-ALARM UNITS .............................. 25 4.6. CHANGING ALARM LEVEL FOR 6-CHANNEL, 2-ALARM UNITS .............................. 26 4.7. OUTPUT DELAYS ......................................................................................... 27 4.8. FAIL SAFE OPERATION ................................................................................. 28 4.9. MUTING THE AUDIBLE ALARM (KEY SWITCH)................................................... 29 4.10. RESETTING HIGH ALARMS (DUAL-LEVEL UNITS ONLY) ..................................... 29 DECLARATION OF CONFORMITY .................................................................. 30 4 6709-9000 Rev 1 MGS Series Controller Manual Section 1. Introduction 1.1. Overview The MGS Series controllers provide local alarm status indications (via multi-colored, per-channel LEDs) as well as single-level or dual-level digital (relay) alarm outputs based on 1, 2, 4, or 6 input signals and 1 or 2 user-definable set-points. 1.2. 2-Channel and 6-Channel Models MGS Controllers support multiple input sensors/transmitters (1, 2, 4, or 6 channels) based on the model of the controller. Inputs are standard 4-20 mA signals from MGS-series sensors or any standard, linear, 4-20 mA transmitter. NOTE: The smaller MGS Controller supports up to two input channels (see Figure 1). The larger controller supports up to six channels (see Figure 2). The number of alarm LEDs on your controller will vary based on the flavor of device that is ordered (see Figure 3). IMPORTANT: If you are NOT using the maximum number of available channels (2 for the smaller controller, and 6 for the larger controller), you must connect a 3300 Ω resistor across pins 1 and 2 for each unused input channel. 1.3. Alarming Regardless of the number of channels supported, each controller contains either 1 or 2 adjustable potentiometers (pots) for setting the alarm value(s). Single-level alarm controllers contain one pot which sets the controller’s alarm threshold. Dual-level alarm controllers contain two pots which are used to set the low-level and high-level alarm thresholds. As an individual channel’s input signal exceed the controller’s alarm threshold (set by the programmable pot(s)), the corresponding channel’s alarm LED is illuminated, allowing a technician to visually inspect the controller for any alarm conditions on a channel-by-channel basis. Refer to Figure 3. 6709-9000 Rev 1 5 MGS Series Controller Manual Figure 1. Sample Configurations (1,2-Channel) 6 6709-9000 Rev 1 MGS Series Controller Manual Figure 2. Sample Configurations (4,6-Channel) MGS Controllers have either one or two relay outputs: one for singlelevel alarm controllers (“Alarm”), and 2 for dual-level alarm controllers (“Alarm High” and “Alarm Low”). Unlike the alarm LEDs that provide a channel-by-channel alarm status of each incoming transmitter’s signal, the relay output “trips” or “energizes” if any of the inputs exceed the alarm threshold set by the pot (that is, if any of the alarm LEDs is energized). Alarm relays can be used to activate warning lights, sirens, ventilation fans, etc. 6709-9000 Rev 1 7 MGS Series Controller Manual Figure 3. Sample Front Panels Showing Status LEDs For dual-alarm configurations, the Alarm Low relay output “trips” or “energizes” if any of the inputs exceed the alarm threshold set by the low alarm pot. Similarly, the Alarm High relay output “trips” or “energizes” if any of the inputs exceed the alarm threshold set by the high alarm pot. All controllers have a green power LED that is on when the unit has power. The 4- and 6-channel 2-level units have a fault relay which “trips” or “energizes” if the controller experiences a fault condition. Like the alarm relays, the fault relay can be use to activate warning lights, sirens, ventilation fans, etc. 1.4. Components The following is a summary of the MGS Controller’s hardware components. Note that features vary based on model and features (e.g., 1-2 channel units vs. 4-6 channel units, single-level alarms vs. dual-level alarms, etc.). 8 6709-9000 Rev 1 MGS Series Controller Manual Components Descriptions Power input Provides power to the MGS Controller Power LED Power status indicator Channels (max) 1-2 Channel Units 4-6 Channel Units 2 max 6 max Sensor input(s) max Alarm levels Single Dual Single Dual Set point POT(s) 1 2 1 2 Alarm relay output(s) 1 2 1 2 Alarm LED(s) (max) 2 4 6 12 N/A N/A N/A 1 Fault relay output Figure 4. 6-Channel, Dual-Alarm MGS Controller 6709-9000 Rev 1 9 MGS Series Controller Manual NOTE: Figure 4 shows components associated with a dualalarm configuration. For single-alarm configurations, the Low Alarm LEDs are not present. JP1 on the single-alarm configuration is the delay jumper. Figure 5. 2-Channel, Dual-Alarm MGS Controller NOTE: Figure 5 shows components associated with a dualalarm configuration. For single-alarm configurations, the Low Alarm LEDs are not present, and the Delay Jumper will be present. The Delay Jumper is not available on dual-alarm configurations, though its location is highlighted above. 10 6709-9000 Rev 1 MGS Series Controller Manual 1.5. Specifications Specification 1-2 Channel 4-6 Channel Product Type 1-2 channel alarm controller 4-6 channel alarm controller Max Channels 2 6 Inputs 4-20 mA 4-20 mA Display LED alarm indicators LED alarm indicators Ambient Temperature Range -20 to +50 degrees C -20 to +50 degrees C Power Supply <20W Specify at time of order: • 110 VAC (60 Hz) • 240 VAC (50 Hz) • 12 VDC <20W Specify at time of order: • 110 VAC (60 Hz) • 240 VAC (50 Hz) • 12 VDC Audible Alarm Integrated 12 VDC Alarm Set points User selectable. Common to all channels. Alarm level set point is based on 4-20 mA input signal. User selectable. Common to all channels. Alarm level set point is based on 4-20 mA input signal. Alarm Relays One 10-A 30 VDC or 250 VAC resistive Form C relay. Two for dualalarm configurations. Common low alarm and high alarm across channels. One 10-A 30 VDC or 250 VAC resistive Form C relay. Two for dualalarm configurations. Common low alarm and high alarm across channels. Common fault relay on dual-level alarm configurations. Housing NEMA 1 wall mount NEMA 1 wall mount Approvals UL/CSA/IEC/EN 61010 (Pending) UL/CSA/IEC/EN 61010 6709-9000 Rev 1 11 MGS Series Controller Manual Section 2. Mounting Instructions 2.1. Installation Warnings WARNING: Explosion hazard! Do not mount the MGS Controller in an area that may contain flammable liquids, vapors, or aerosols. Operation of any electrical equipment in such an environment constitutes a safety hazard. CAUTION: The MGS Controller contains sensitive electronic components that can be easily damaged. Do not touch nor disturb any of these components. NOTE: The mounting location of the MGS Controller should allow it to be easily accessible for visual monitoring and servicing. NOTE: The MGS Controller must be connected by a marked, suitably located and easily reached switch or circuit-breaker as means of disconnection. NOTE: Connect power and signaling terminals using wiring that complies with local electrical codes or regulations for the intended application. CAUTION: The MGS controller contains sensitive electronic components that can be easily damaged. Do not touch nor disturb any of these components 2.2. Location Recommendations NOTE: The MGS Controller should be installed plumb and level and securely fastened to a rigid mounting surface. At a minimum, the MGS Controller must be located within the appropriate wire lengths from the sensors being monitored. In addition, consider environmental conditions and accessibility. Refer to Section 3 for more information on sensor wiring lengths. 12 6709-9000 Rev 1 MGS Series Controller Manual Sensors must be located within the appropriate wire lengths from the central control unit (if used). In all cases the sensor supplied is designed for maximum sensitivity to a particular gas. However, in certain circumstances false alarms may be caused by the occasional presence of sufficiently high concentrations of other gaseous impurities. Examples of situations where such abnormalities may arise include the following: • • • Plant room maintenance activity involving solvent or paint fumes or refrigerant leaks. Accidental gas migration in fruit ripening/storage facilities (bananas - ethylene, apples - carbon dioxide). Heavy localized exhaust fumes (carbon monoxide, dioxide, propane) from engine-driven forklifts in confined spaces or close to sensors. Bacharach recommends setting the alarm delay to minimize false alarms. See Section 4.7 for more information. 2.3. Mounting Dimensions The controllers contain a single teardrop cutout at the top center of the enclosure. Two smaller holes are located in the bottom corners of the enclosure. Refer to the mounting dimension figures that follow. Each enclosure base provides a ½” standoff from the mounting surface to allow use of a power line knockout in back of enclosure base. Power wiring may also enter the enclosure via one of the input holes on the bottom of the enclosure. 6709-9000 Rev 1 13 MGS Series Controller Manual Figure 6. Mounting Dimensions (2-Channel Unit) 14 6709-9000 Rev 1 MGS Series Controller Manual Figure 7. Mounting Dimensions (6-Channel Unit) 6709-9000 Rev 1 15 MGS Series Controller Manual Section 3. Wiring 3.1. 1- and 2-Channel Units (Single- and Dual-Alarm) Wiring to Sensors/Transmitters Controller Terminal Block CN1 CN2 Controller Pin Number Signal Sensor/ Transmitter 1 +Ve supply +V in 2 4-20 mA signal 4-20 mA out 4 -Ve input GND in 1 +Ve supply +V in 2 4-20 mA signal 4-20 mA out 4 -Ve input GND in Figure 8. Wiring (2-Channel, Single-Alarm Unit Shown) 16 6709-9000 Rev 1 MGS Series Controller Manual NOTE: The potential from -Ve to +Ve is approximately 15 VDC. Figure 9. Wiring (2-Channel, Dual-Alarm Unit Shown) 3.2. 4- and 6-Channel Units (Single- and Dual-Alarm) Wiring to Sensors Controller Terminal Block CN1 – CN6 6709-9000 Rev 1 Controller Pin Number Signal Sensor/ Transmitter 1 +Ve supply +V in 2 4-20 mA signal 4-20 mA out 4 -Ve input GND in 17 MGS Series Controller Manual Figure 10. Wiring (6-Channel, Single-Alarm Unit Shown) 18 6709-9000 Rev 1 MGS Series Controller Manual Figure 11. Wiring (6-Channel, Dual-Alarm Unit Shown) NOTE: An external horn is provided with 4- and 6-channel units. Refer to the next section for details. 6709-9000 Rev 1 19 MGS Series Controller Manual 3.3. External Horn (for Audible Alarms) Horn Specifications (Test Conditions at 25°C) Specification Description Housing Black ABS Power Rating 10 W (RMS), 15 W (peak) Voltage 12 VDC (Rated), 6-16 VDC range Current 200 mA max (@ 12 VDC) Sound Pressure Level Minimum 100 dB at 1 meter (@ 12 VDC) Connections Red: +12 V, Black: Ground Weight 2.3 ± 0.2 oz 20 (65 ± 5 g) 6709-9000 Rev 1 MGS Series Controller Manual Section 4. Configuration and Operation 4.1. Overview The following topics are explained in this section: • • • • • Changing alarm limits (pots and CAL header) Setting output delays (jumper) Fail-safe operation (jumper) Muting the audible alarm (key) Resetting high alarms (button) 4.2. Introduction to Changing Alarm Level(s) Items needed: • • voltmeter small flat-blade screwdriver To monitor and adjust the alarm set point level(s), connect the voltmeter to the appropriate pins of the CAL header. Then adjust the appropriate potentiometer (POT) using the flat-blade screwdriver until the desired alarm level is displayed on the voltmeter. The pins of the CAL header are used to monitor the alarm levels of the controller. See table below. CAL Pins CAL Pin Description 1 High Level Alarm Set point 2 Low Level Alarm Set point 3 Not Used 4 Zero volts (-Ve) NOTE: Locations of CAL headers and POTs vary based on your controller’s model. Use the POT table (below), board layout diagrams (that follow), and PCB silk-screens to determine component locations and how to adjust your controller’s alarm limit(s). 6709-9000 Rev 1 21 MGS Series Controller Manual POTs Used to Set Alarm Limits Max # Input Chans Number of Alarms Alarm Type P3 1 High x 2 2 1 6 2 P7 Low x High x High x Low High P8 x x The alarm range is set over the voltage range of 0.4 V to 2.0 V. A voltage of 0.4 V equals 0 ppm and 2.0 V equals full scale such as 1000 ppm. Calculation Example: Desired Alarm Set Point = 500 ppm. Full scale range = 1000 ppm. V = 0.4v + � Alarm Voltage Range � × Desired Alarm SP Full Scale PPM Range V = 0.4v + � 2.0v − 0.4 v � × 500 ppm 1000 ppm V = 1.2 V (for a 500 ppm alarm level) 22 6709-9000 Rev 1 MGS Series Controller Manual 4.3. Changing Alarm Level for 2-Channel, 1-Alarm Units Step Instructions 1 Connect voltmeter leads to pin 4 (-Ve) and pin 1 (+Ve) on the CAL header. 2 Using the flat-blade screwdriver, adjust potentiometer P3 until the reading on the DC voltmeter corresponds to the desired input alarm level. P3 NOTE: When adjusting the alarm level, a 0.4 to 2.0 VDC reading on the voltmeter corresponds to a 4 to 20 mA value for the input alarm threshold. NOTE: Both channels have the same alarm threshold. Figure 12. Hardware PCB Layout (2 Channel, 1 Alarm) 6709-9000 Rev 1 23 MGS Series Controller Manual 4.4. Changing Alarm Level for 2-Channel, 2-Alarm Units Step Instructions 1 Connect voltmeter leads to pin 4 (-Ve) and pin 1 (+Ve) on the CAL header. 2 Using the flat-blade screwdriver, adjust potentiometer P7 until the reading on the DC voltmeter corresponds to the desired input high alarm level. 3 Connect voltmeter leads to pin 4 (-Ve) and pin 2 (+Ve) on the CAL header. 4 Using the flat-blade screwdriver, adjust potentiometer P8 until the reading on the DC voltmeter corresponds to the desired input low alarm level. P7 P8 NOTE: When adjusting the alarm level, a 0.4 to 2.0 VDC reading on the voltmeter corresponds to a 4 to 20 mA value for the input alarm threshold. NOTE: Both channels have the same alarm thresholds. Figure 13. Hardware PCB Layout (2 Channel, 2 Alarm) 24 6709-9000 Rev 1 MGS Series Controller Manual 4.5. Changing Alarm Level for 6-Channel, 1-Alarm Units Step Instructions 1 Connect voltmeter leads to pin 4 (-Ve) and pin 1 (+Ve) on the CAL header. 2 Using the flat-blade screwdriver, adjust potentiometer P7 until the reading on the DC voltmeter corresponds to the desired input alarm level. P7 NOTE: When adjusting the alarm level, a 0.4 to 2.0 VDC reading on the voltmeter corresponds to a 4 to 20 mA value for the input alarm threshold. NOTE: All channels have the same alarm threshold. Figure 14. Hardware PCB Layout (6 Channel, 1 Alarm) 6709-9000 Rev 1 25 MGS Series Controller Manual 4.6. Changing Alarm Level for 6-Channel, 2-Alarm Units Step Instructions 1 Connect voltmeter leads to pin 4 (-Ve) and pin 1 (+Ve) on the CAL header. 2 Using the flat-blade screwdriver, adjust potentiometer P7 until the reading on the DC voltmeter corresponds to the desired input high alarm level. 3 Connect voltmeter leads to pin 4 (-Ve) and pin 2 (+Ve) on the CAL header. 4 Using the flat-blade screwdriver, adjust potentiometer P8 until the reading on the DC voltmeter corresponds to the desired input low alarm level. P7 P8 NOTE: When adjusting the alarm level, a 0.4 to 2.0 VDC reading on the voltmeter corresponds to a 4 to 20 mA value for the input alarm threshold. NOTE: All channels have the same alarm thresholds. Figure 15. Hardware PCB Layout (6 Channel, 2 Alarm) 26 6709-9000 Rev 1 MGS Series Controller Manual 4.7. Output Delays Controllers with only single-level alarm capabilities use jumper JP1 to enable/disable a 3-minute output delay for the input level alarm. This delay provides a hysteresis preventing nuisance toggling of the alarm. The delay is enabled when the jumper is in the ON position, and disabled when in the OFF position. The delay for single-level systems is approximately 3 minutes. Refer to Figure 12 for locations of the JP1 jumper and Figure 16 for a graphic representation of the alarm responses when the delay is enabled and disable (via JP1). Output Delay Jumper JP1 Position Description Output delays are off. Wait after input exceeds alarm level before triggering alarm relay. Figure 16. Alarm Response (Single-Level Alarms) The delays for dual-level systems are about 25 seconds for the low level and then another 25 seconds for the high level. Refer to Figure 17 for a graphic representation of the alarm response showing the 25-second delays that are imposed. 6709-9000 Rev 1 27 MGS Series Controller Manual Figure 17. Alarm Response (Dual-Level Alarms) 4.8. Fail Safe Operation The JP1 jumper on the 6-channel controller with dual-level alarm capabilities is used to enable/disable the high-level alarm relay (RL1) to operate in fail-safe mode. Fail-Safe Jumper JP1 Position Description Relay RL1 is normally open. It is energized on a high alarm condition. Relay RL1 is normally closed. It is deenergized on high alarm condition OR power failure. 28 6709-9000 Rev 1 MGS Series Controller Manual 4.9. Muting the Audible Alarm (Key Switch) If service is being carried out on the system or the user does not require a local audible alarm then it can be muted using the key switch. In the default position, the audible alarm is enabled. In the other position, the audible alarm is off/muted. NOTE: The key switch can also be used to turn off the local audible alarm during bump tests. 4.10. Resetting High Alarms (Dual-Level Units Only) The red pushbutton on the controller is used to acknowledge (reset) high alarms. Once the unit goes into a high alarm state the alarm latches. After the gas has cleared the reset button must be pushed to clear the alarm(s). ∇ ∇ ∇ 6709-9000 Rev 1 29 MGS Series Controller Manual DECLARATION OF CONFORMITY The manufacturer of the products covered by this declaration: Bacharach, Inc. 621 Hunt Valley Circle New Kensington, PA 15068 Year conformity is declared: 2012 Product(s): MGS Model(s): MGS Controller The undersigned hereby declares that the above referenced products are in conformity with the provisions of the following standard(s) and is in accordance with the following directive(s). Standard(s): UL 61010-1 CSA C22.2 No. 61010-1 IEC 61010-1: 2010 EN 61010-1: 2010 Safety Standards Electrical Equipment for Measurement, Control, and Laboratory Use; Part 1: General Requirements Signature: Name: Title: Date: Doug Keeports VP of Product Development 5 October 2012 The technical documentation file required by this directive is maintained at the corporate headquarters of Bacharach, Inc. 30 6709-9000 Rev 1 MGS Series Controller Manual 6709-9000 Rev 1 31 MGS Series Controller Manual World Headquarters 621 Hunt Valley Circle, New Kensington, Pennsylvania 15068 Phone: 724-334-5000 • Toll Free: 1-800-736-4666 • Fax: 724-334-5001 Website: www.MyBacharach.com • E-mail: [email protected] 32 6709-9000 Rev 1